Side by side

Grand Seiko SLGA009vsLongines CONQUEST

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

SLGA009
Grand SeikoSLGA009
MSRP $9,800
CONQUEST
LonginesCONQUEST
MSRP $2,850

At a glance

20 of 29 specs differ
Diameter
SLGA00940mm
CONQUEST30mm
Power Reserve
SLGA009120h
CONQUEST45h
Water Resistance
SLGA009100m
CONQUEST100m
MSRP
SLGA009$9,800
CONQUEST$2,850

Full specifications

Case

7 specs
Category
Dress
Sport
Diameter
40mm
30mm
Thickness
11.8mm
9.7mm
Lug-to-Lug
47.9mm
37.8mm
Lug Width
22mm
15mm
Finish
Brushed and polished
Caseback
Solid
Screw-down and transparent with sapphire crystal case back

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Yes
Both sides
Dial Color
Black
Blue
Indices
Applied
Diamond indexes
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
9RA2
L592.5
Type
Spring Drive
Automatic
Power Reserve
120h
45h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date

Pricing

1 specs
MSRP
$9,800
$2,850

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Grand Seiko SLGA009

The Grand Seiko SLGA009 "White Birch II" is praised for its Spring Drive Caliber 9RA2 movement, offering exceptional accuracy of ±0.5 seconds per day and a 120-hour power reserve. Reviewers highlight its refined dial texture, inspired by Shinshu forests, and the Series 9 design with a frost-finished movement. The watch features a 40mm stainless steel case and a power reserve indicator on the movement bridge. However, its price of $8,600 to $9,100 USD is noted as relatively expensive, reflecting Grand Seiko's increasing price points. Overall, reviewers consider the Grand Seiko SLGA009 a highly refined timepiece, with its advanced Spring Drive movement and aesthetic improvements being key strengths.

Longines CONQUEST

Owners and reviewers widely praise the Longines CONQUEST for its high-quality finishing, versatile design, and exceptional value, with many highlighting its comfortable wearability and solid build. Accuracy figures are generally positive, with one owner reporting +1/+2 seconds per day. However, several owners note that the bracelet lacks micro-adjustment, which can affect fit, and some find the lume to be weak or inconsistently applied across variants. One owner also mentioned the crown rubbing against the wrist. On balance, owners and reviewers rate the Longines CONQUEST highly for its blend of elegant design and robust build at an accessible price point.

From video reviewers

The perfectly balanced case size is a key strength of the Longines Conquest. A notable weakness is the somewhat lacking lume brightness. Reviewers disagree on the ideal case size, with one preferring 38mm and the other 39mm.

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